Wind-up mechanism for looms



J. NORTHROP. WIND-UP MECHANISM FOR LOOMS.

APPLlCATlON HLED AUG- 11, 9X9.

1 383559783 P tented July 5, 1921.

3 SHEETS-SHEET l.

J. NORTHROP.

W|ND-UP MECHANISM FOR LOOMS.

APPLICATION FILED AUG-11,1919.

1,383,478. Patented. July 5, 1921..

E S 2- 66! l 2 3 SH ET SHEET J. NORTHROP.

WIND-UP MECHANISM FOR LOOMS. APPucAnoN FILED AUG.H| 1919.

1 183,478. Patented July 5, 1921.

3 SHEETS-SHEET 3.

We /7% jvenivr vMQLbAH-M UNITED sTAT s' FACTURING- COMPANY, SAOI-ITISETTS.

lgasenvsi 'To all whom it may concern:

Be it known that I, JONAS NORTHROP, a citizen ofthe United States, residing at Hopedale, in thecounty of 'Worcester and State of -l\iassachusetts,,have invented certain new and'useful Improvements inlVind- Up. Mechanism for Looms; and I do hereby declare the fo-llowing'to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

, the loom frame 12.

trate details hereinafter referred to.

This invention relates to a wind-up mechanism for looms; object to provide a wind-up mechanism for looms which is of a simple, inexpensive construction and whoseoperation is positive and efiicient. 1

VVind-up mechanisms for looms as heretofore constructed have usually comprised a combination of racks, pinions, pulleys, gears and,:in generaL -a series of small'cotiperating elements whose maintenance and upkeep .involve considerable expense and trouble; The present. invention contemplates a 1 construction of wind-up mechanisms which is extremely simple, inexpensive and in which no racks, pulleys, gears orany of the usual elements are employed. The invention consists in the wind-up mechanism hereinafter described and claimed.

.In the drawings which illustrate the preferred embodiment of theinvention, Figure 1 is a' front elevation ofa part of a loom showing. the improved wind-up mechanism; F ig. 2 is a section on the line 22 of F1g. 1; Fig. 3 is a sectional plan taken on the line 3-l-3 Fig. 2 showing the actuat ng wedge; Fig. 4 is an enlarged side elevation of the left hand portion of the structure shown in Fig. 1; and Figs. 5 and 6 11%}?- e wind-upmechanism illustrated in the drawings. isdescribed as follows:

The finished cloth 10 is drawn through theloom by the draw roll 11 journaled in roll 11 is provided withthe usual corrugations adapted to engage and grip the cloth 10 as it passes thereover. The cloth after it passes around the draw roll 11 is led up over an idler roll 13 also journ'aled in the loom 4 roll 14. The draw roll Specification of Letters Patent. Application filed August 11, 1919.

-The invention has for an The surface of the draw PATENT OFFICE.

JONAS 1\T ORTHR-OP, OF HOPEDALE, MASSACHUSETTS,

ASSIGNOR TO HOPEDALE IVIANU- 01E MILFORD, MASSACHUSETTS, A CORPORATION OF MAS- WIND-UP MECI-IALNISM FOR LOOMS.

Patented July 5, 1921. Serial No. 316,548. j

shaft 50 of the loom through the take-up mechanism 51. The take-up mechanism is, or may be, of the usual construction and, of itself forms no part of the present invention. The rotations of the cam shaft 50 are transmitted to the draw roll 11 through bevel gears 52, 53, shaft 54 journaled'in v bearing 55, carried by a supporting bracket 56, worm 57, and train of gears 59, 60, 61, 62, 63, and 64. Provision is made for withdrawing the worm 57 from engagement with the gear 59 by the eccentric bearing 70 (carried by the supporting bracket 71, bolted to the loom frame 12) provided with a movable latch 72 adapted to lock the shaft 54 to maintain the worm 57 in an operative position in mesh withthe gear 59. See Fig. 6 sectional elevation on line 6, Fig. 2) which shows the hand lever 74 for operating the eccentric bearing.

The wind-up roll 14 is journaled in slides 15 mounted in supporting guides 16 rigidly secured to the loom frame 12. The slides 5 are pivoted at their outer ends of arms 18, of three-arm levers 19. The three-arm levers 19 are pivotally secured by bolts 21 to a bracket 20 bolted to an angle iron 22 extending across the front of and forming part of the loom frame 12. A heavy coil spring 25 is arranged between the lower pair of arms 24, of the three arm levers 19, being held in an operative position between the arms 24 by lugs 26 projecting from the opposing surfaces thereof. Thus it will be observed that the slides 15 and wind-up roll 14' journaled therein are yieldingly held upward by the compression in the coil spring 25 which is exerted against the lower arms 24 thus tending to swing the arms 18 upward about the pivots 21 and holding the wind-up roll 14 against the draw roll 11, so that it is frictionally driven thereby to wind up the cloth 10.

wedge 30 is arranged between the upper pair of arms 23.0f the three arm levers 19. This Wed e is actuated bya screw 31 which'screws through a threaded hole in the wedge being rotatably supported in the bracket 20 and angle iron 22, see Fig. 2. A washer'28 and cotter pin 29 serve to maintain the screw 31in an operative position with relation to the bracket 20 and to p vent its withdrawal from the bracket. A crank 35 attached to the forward end of the screwBl permits the rotation of the screw lower ends to the '18 are dropped and downwardly by manually "rotating the crank arms 23 and tothereby cause 35 so as to move the wedge 30between the the arms 18 to downwardly in an are about the p vthe open bearings 40 (see 1g.

swing ots 21 until 5) in the slides register wlthslots 42in .swin'g'in an arc.

the guides 16. The lowerv portion of the guides 16 are extended outwardly somewhat in order to permit the ends of the arms 18 to When the open bearings 40. register with the slots 42 an empty w1ndup roll 14'may .42 into the bearings 40 whereupon thehangradually spring 25.

be inserted through the slots dle'35 isturnedin the reverse direction thus causing the wedge to, move rearwardly and permitting the coil spring 25'to cause the slides 15 and wind-up roll 14 to be gradually moved upward in the guides. 16 until the wind-up roll 14' contacts with the draw roll 11. The end of the cloth 10 then is started upon the wind-up roll 14 so that as the draw roll 11 draws the cloth through the loom, the wind-up roll 14 is frictionally driven thereby and operates to wind up the cloth. Asthe diameter of the wind-up roll and cloth thereon increases, the slides 15 are moved downwardly acting through 18 and 24 to compress the coil Thus it will be apparent that increases in. diameter of the cloth and windup roll 141are gradually compensated for, and at the sametime the periphery of .the

the arms 1 roll of. cloth is yieldingly heldagainst the ers the cloth and turns the handle 35 to. move the wedge 30 forwardly thus moving the slides15 downward wind-up roll 14 may.

. period of time and draw roll 11 so that it is frictionally driven thereby at all times. -Then the diameter of the cloth upon the wind-up roll 14 has increased to the desired size, theoperator sevuntil the open bearing 40 registers with the slot 42 in the guides 16-whereupon the rollrof cloth and be easily withdrawn through the slots '42 and thereafter'a fresh wind-up roll is inserted and the operation is repeated. 7 r

It will be observed that the construction of the wind-up mechanism is simple, that the various elements such as the slides 15, the

heavy coil spring 25 are of such nature as to last for a long that power is transmittedthree-arm levers 19, and

, to cause movements of the wind-up roll by the wedge 30-and the screw 31 so that the usual small cooperating elements such as pulleys," gears, racks, -and pinions' are eliminated, thereby reducing the initial cost of the mechanism and the expense of up-keep.

The invention is not limited to the illusthe slides 15 are moved.

prising a trated embodiment thereof but may be em-' bodied in other forms within the scope of' the following claims: l V

1. A wind-up mechanism -for looms'having, in combination, a draw roll, means for rotating the same, aloom frame having upright members. arranged to support 'sai roll and rotating means,"a wind-up in said upright memdraw roll, slldes mounted hers arranged to support the ends of the wind-up roll, means for yieldingly holding the slides in thelr upward position, and 7 means for moving the slides downwardly. .2. Awind-up mechanism for looms having, in combination, adraw roll, means for rotating the same, a loom frame having upright members draw roll and rotating'means, a wind-11p, roll, slides mounted in said upright,,mem-. bers arranged to support the ends; of the wind-up roll, levers cooperating with the slides, levers for holding the slides-upwardly and moving the slides downwardly.

3. A wind-up mechanismfor looms comprising a draw roll, means for rotating the draw roll, guides secured to :the loom frame and having slots therein, a wind-up roll, slides. received in said. guides and, having open bearings adapted to receive'the wind-- up roll, means for yieldingly holding the slides upwardly and means for moving the slides downwardly -to a positionin' which the bearings register with the slots .in'the guides to permit withdrawal of the wind-up roll from its bearings. I 1

4. Awind-up mechanism for loomscom draw roll, means for rotating the draw roll, guides secured to the loom frame, slides mounted in said guides, a wind-up roll mounted on. levers pivotally securedto the loomframe, arranged so that one set of arms. cooperatev with the slides, second set of the arms for yieldingly holdingthe slides upward, and means cooperat ing with the third set of' arms 'for moving the slides downwardly.) Y

arranged r01 support said. i

and. means cooperating with the-' the slides,: and three-arm 7 5. 'A'wind-up mechanism for looms comprising a draw roll, means for rotating'the draw roll, guides secured to the loom frame,

6. A wind-up mechanism for looms comprising a draw roll, -means for rotating the draw roll,: guide's secured to the loom frame, slides mounted in said ides, a w1nd-up roll mounted on the slides, and

three-arm levers pivotally secured to the loom frame, arranged so that one set of arms cooperate with the slides, a spring between the second set of arms arranged to hold the 5 slides upwardly with a third set of said arms to move the and a wedge cooperating slides downwardly.

wind-up mechanism for looms comprising a draw roll, means for rotating the draw roll, a wind-up roll, means for yieldingly holding the wind-up roll against the draw roll, and means for moving the windup roll away from the draw roll including levers movable in a plane parallel to the loom shafts.

JONAS N ORTHROP. 

